Question

The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is : 

(c = speed of electromagnetic waves)

(1) 1 : c² 

(2) c : 1 

(3) 1 : 1 

(4) 1 : c

Answer 1

Correct answer is (3) 1:1

In EMW, electric field and magnetic field have same energy density and same intensities.